Given:
The graph of a figure and its image after dilation.
To find:
The scale factor.
Solution:
From the given graph it is clear that
ND = 3 units
N'D' = 6 units.
We know that,
[tex]\text{Scale factor}=\dfrac{\text{Side of image}}{\text{Corresponding side of original figure}}[/tex]
[tex]\text{Scale factor}=\dfrac{N'D'}{ND}[/tex]
[tex]\text{Scale factor}=\dfrac{6}{3}[/tex]
[tex]\text{Scale factor}=2[/tex]
Therefore, the scale factor is 2 and the correct option is A.
